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lib/fconf: Update 'set_fw_config_info' function

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Updated the function 'set_fw_config_info' to make it generic
by doing below changes:

1. Rename function name from 'set_fw_config_info' to 'set_config_info'
2. Take image_id as an argument so that this function can set any
   config information.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: Icf29e19d3e9996d8154d84dbbbc76712fab0f0c1
This commit is contained in:
Manish V Badarkhe 2020-07-15 05:08:37 +01:00 • committed by Manish V Badarkhe
parent a4ff9d7e1e
commit f441718936
3 changed files with 33 additions and 42 deletions
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5
include/lib/fconf/fconf_dyn_cfg_getter.h
View file

@ -21,7 +21,8 @@ struct dyn_cfg_dtb_info_t {
struct dyn_cfg_dtb_info_t *dyn_cfg_dtb_info_getter(unsigned int config_id);
int fconf_populate_dtb_registry(uintptr_t config);
/* Set fw_config information in global DTB array */
void set_fw_config_info(uintptr_t config_addr, uint32_t config_max_size);
/* Set config information in global DTB array */
void set_config_info(uintptr_t config_addr, uint32_t config_max_size,
unsigned int config_id);
#endif /* FCONF_DYN_CFG_GETTER_H */

68
lib/fconf/fconf_dyn_cfg_getter.c
View file

@ -14,63 +14,56 @@
/* We currently use FW, TB_FW, SOC_FW, TOS_FW, NT_FW and HW configs */
#define MAX_DTB_INFO U(6)
/*
* Compile time assert if FW_CONFIG_ID is 0 which is more
* unlikely as 0 is a valid image ID for FIP as per the current
* code but still to avoid code breakage in case of unlikely
* event when image IDs get changed.
*/
CASSERT(FW_CONFIG_ID != U(0), assert_invalid_fw_config_id);
static struct dyn_cfg_dtb_info_t dtb_infos[MAX_DTB_INFO];
static OBJECT_POOL_ARRAY(dtb_info_pool, dtb_infos);
/*
* This function is used to alloc memory for fw config information from
* global pool and set fw configuration information.
* Specifically used by BL1 to set fw_config information in global array
* This function is used to alloc memory for config information from
* global pool and set the configuration information.
*/
void set_fw_config_info(uintptr_t config_addr, uint32_t config_max_size)
void set_config_info(uintptr_t config_addr, uint32_t config_max_size,
unsigned int config_id)
{
struct dyn_cfg_dtb_info_t *dtb_info;
dtb_info = pool_alloc(&dtb_info_pool);
dtb_info->config_addr = config_addr;
dtb_info->config_max_size = config_max_size;
dtb_info->config_id = FW_CONFIG_ID;
dtb_info->config_id = config_id;
}
struct dyn_cfg_dtb_info_t *dyn_cfg_dtb_info_getter(unsigned int config_id)
{
unsigned int index;
struct dyn_cfg_dtb_info_t *info;
/* Positions index to the proper config-id */
for (index = 0; index < MAX_DTB_INFO; index++) {
for (index = 0U; index < MAX_DTB_INFO; index++) {
if (dtb_infos[index].config_id == config_id) {
info = &dtb_infos[index];
break;
return &dtb_infos[index];
}
}
if (index == MAX_DTB_INFO) {
WARN("FCONF: Invalid config id %u\n", config_id);
info = NULL;
}
WARN("FCONF: Invalid config id %u\n", config_id);
return info;
return NULL;
}
int fconf_populate_dtb_registry(uintptr_t config)
{
int rc;
int node, child;
struct dyn_cfg_dtb_info_t *dtb_info;
/* As libfdt use void *, we can't avoid this cast */
const void *dtb = (void *)config;
/*
* Compile time assert if FW_CONFIG_ID is 0 which is more
* unlikely as 0 is a valid image id for FIP as per the current
* code but still to avoid code breakage in case of unlikely
* event when image ids gets changed.
*/
CASSERT(FW_CONFIG_ID != 0, assert_invalid_fw_config_id);
/*
* In case of BL1, fw_config dtb information is already
* populated in global dtb_infos array by 'set_fw_config_info'
@ -80,11 +73,9 @@ int fconf_populate_dtb_registry(uintptr_t config)
* Other BLs, satisfy below check and populate fw_config information
* in global dtb_infos array.
*/
if (dtb_infos[0].config_id == 0) {
dtb_info = pool_alloc(&dtb_info_pool);
dtb_info->config_addr = config;
dtb_info->config_max_size = fdt_totalsize(dtb);
dtb_info->config_id = FW_CONFIG_ID;
if (dtb_infos[0].config_id == 0U) {
uint32_t config_max_size = fdt_totalsize(dtb);
set_config_info(config, config_max_size, FW_CONFIG_ID);
}
/* Find the node offset point to "fconf,dyn_cfg-dtb_registry" compatible property */
@ -96,37 +87,36 @@ int fconf_populate_dtb_registry(uintptr_t config)
}
fdt_for_each_subnode(child, dtb, node) {
uint32_t val32;
uint32_t config_max_size, config_id;
uintptr_t config_addr;
uint64_t val64;
dtb_info = pool_alloc(&dtb_info_pool);
/* Read configuration dtb information */
rc = fdt_read_uint64(dtb, child, "load-address", &val64);
if (rc < 0) {
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
return rc;
}
dtb_info->config_addr = (uintptr_t)val64;
config_addr = (uintptr_t)val64;
rc = fdt_read_uint32(dtb, child, "max-size", &val32);
rc = fdt_read_uint32(dtb, child, "max-size", &config_max_size);
if (rc < 0) {
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
return rc;
}
dtb_info->config_max_size = val32;
rc = fdt_read_uint32(dtb, child, "id", &val32);
rc = fdt_read_uint32(dtb, child, "id", &config_id);
if (rc < 0) {
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
return rc;
}
dtb_info->config_id = val32;
VERBOSE("FCONF: dyn_cfg.dtb_registry cell found with:\n");
VERBOSE("\tload-address = %lx\n", dtb_info->config_addr);
VERBOSE("\tmax-size = 0x%x\n", dtb_info->config_max_size);
VERBOSE("\tconfig-id = %u\n", dtb_info->config_id);
VERBOSE("\tload-address = %lx\n", config_addr);
VERBOSE("\tmax-size = 0x%x\n", config_max_size);
VERBOSE("\tconfig-id = %u\n", config_id);
set_config_info(config_addr, config_max_size, config_id);
}
if ((child < 0) && (child != -FDT_ERR_NOTFOUND)) {

2
plat/arm/common/arm_bl1_setup.c
View file

@ -163,7 +163,7 @@ void arm_bl1_platform_setup(void)
/* Set global DTB info for fixed fw_config information */
fw_config_max_size = ARM_FW_CONFIG_LIMIT - ARM_FW_CONFIG_BASE;
set_fw_config_info(ARM_FW_CONFIG_BASE, fw_config_max_size);
set_config_info(ARM_FW_CONFIG_BASE, fw_config_max_size, FW_CONFIG_ID);
/* Fill the device tree information struct with the info from the config dtb */
err = fconf_load_config(FW_CONFIG_ID);